Interleukin-21 (IL-21) belongs to the Type I four helix bundle cytokines, and shares the common cytokine receptor gamma chain with IL-2, IL-4, IL-7, IL-9, and IL-15. IL-21 is expressed by CD4+ T cells, natural killer (NK) T cells, and Th17 cells, and the IL-
Molecular Weight:
15.4 kDa, observed by reducing SDS-PAGE.
Source:
Escherichia coli.
Purity:
> 95% by SDS-PAGE analysis.
Form:
Sterile Filtered White lyophilized (freeze-dried) powder.
